A beautiful cave near Myvatn containing a hot spring. You can’t swim in the water, but the cobalt pool is picturesque, and a scene from Game of Thrones was filmed here if you’re a fan.
Hours
Monday: Open 24 hoursTuesday: Open 24 hoursWednesday: Open 24 hoursThursday: Open 24 hoursFriday: Open 24 hoursSaturday: Open 24 hoursSunday: Open 24 hours